Read this document and the documents listed in the additional resources section about installation, configuration, and
operation of this equipment before you install, configure, operate, or maintain this product. Users are required to
familiarize themselves with installation and wiring instructions in addition to requirements of all applicable codes, laws,
and standards.
Activities including installation, adjustments, putting into service, use, assembly, disassembly, and maintenance are
required to be carried out by suitably trained personnel in accordance with applicable code of practice.
If this equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may
be impaired.
In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages resulting from
the use or application of this equipment.
The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many variables and
requirements associated with any particular installation, Rockwell Automation, Inc. cannot assume responsibility or
liability for actual use based on the examples and diagrams.
No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits, equipment, or
software described in this manual.
Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell Automation,
Inc., is prohibited
Throughout this manual, when necessary, we use notes to make you aware of safety considerations.
WARNING: Identifies information about practices or circumstances that can cause an explosion in a hazardous
environment, which may lead to personal injury or death, property damage, or economic loss.
ATTENTION: Identifies information about practices or circumstances that can lead to personal injury or death, property
damage, or economic loss. Attentions help you identify a hazard, avoid a hazard, and recognize the consequence.
IMPORTANTIdentifies information that is critical for successful application and understanding of the product.
Labels may also be on or inside the equipment to provide specific precautions.
SHOCK HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that dangerous
voltage may be present.
BURN HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that surfaces may
reach dangerous temperatures.
ARC FLASH HAZARD: Labels may be on or inside the equipment, for example, a motor control center, to alert people to
potential Arc Flash. Arc Flash will cause severe injury or death. Wear proper Personal Protective Equipment (PPE). Follow ALL
Regulatory requirements for safe work practices and for Personal Protective Equipment (PPE).
Table of Contents
Preface
Who Should Use This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Read this preface to familiarize yourself with the rest of the manual. It provides
information concerning:
•Who would use this manual
•The purpose of this manual
• Related documentation
• Conventions used in this manual
Who Should Use This Manual
Purpose of This Manual
Conventions Used in This
Manual
Use this manual to design, install, program, or troubleshoot systems that use
the TLSZ Guardmaster® guard locking safety switches.
You are required to have a basic understanding of electrical circuitry and
familiarity with safety-related control systems. If you do not, obtain the proper
training before using this product.
This manual is a reference guide for the Guardmaster TLSZ guard locking
switch. It describes the procedures you use to install, wire, and troubleshoot
your switch. This manual:
• Explains how to install and wire your TLSZ switch,
• Provides an overview of the Guardmaster TLSZ guard locking switch.
The following conventions are used throughout this manual:
• Bulleted lists such as this one provide information, not procedural steps.
• Numbered lists provide sequential steps or hierarchical information.
Additional Resources
The following documents offers additional information about related
Rockwell Automation products.
You can view and download publications at rok.auto/literature
Rockwell Automation Publication 440G-UM002A-EN-P - March 20195
Provides example wiring diagrams for the CR30 software
configuration safety relay.
Provides general guidelines for installation of a
RockwellAutomation® industrial system.
Provides declarations of conformity, certificates for the
TLSZ guard locking switch.
Provides functional safety data and details for
RockwellAutomation products.
Glossary of industrial automation terms and
abbreviations
.
Preface
Terminology
The Industrial Automation Glossary contains terms and abbreviations used by
Rockwell Automation to describe industrial automation systems. Below is a list
of specific terms and abbreviations used in this manual.
NCNo connection
N.C. (Normally
Closed)
N.O. (Normally
Open)
PLCA programmable logic controller or a programmable
PTL (Power to
Lock)
PTL (Power to
Release)
Reaction TimeDescribes the time between the true state of the input to
An electrical contact whose normal state (for example,
no pressure or electrical potential applied) is in the
closed position.
An electrical contact whose normal state (i.e., no
pressure or electrical potential applied) is in the open
position.
automation controller.
Apply 24V to the lock command to lock the switch.
This command applies to the TLSZL switch.
Apply 24V to the lock command to unlock the switch.
This command applies to the TLSZR switch.
the ON state of the output.
Response TimeDescribes the time between the trigger of the input to
the OFF state of the output. Throughout this manual,
the safety outputs may be described as turning off
immediately. This means that the safety outputs will
turn off within the response time.
RFIDRadio frequency identification.
OSSD (Output
Signal Switching
Device)
Standard codingSame as Low coding as defined in ENISO14119:2013
TLSZLTLSZ power-to-lock guard locking switch
TLSZRTLSZ power-to-release guard locking switch
Unique codingSame as High coding as defined in ENISO14119:2013
Typically a pair of solid-state signals pulled up to the
DC source supply. The signals are usually tested for
short circuits to the DC power supply, short circuits to
the DC common, and short circuits between the two
signals.
6Rockwell Automation Publication 440G-UM002A-EN-P - March 2019
General Description
Chapter 1
Guardmaster TLSZ Overview
This Guardmaster® TLSZ guard locking switch functions by locking it
actuator, which prohibits the opening of a guard.
The TLSZ uses radio frequency identification, RFID, coding to detect the
appropriate target.
This version of the Guardmaster TLSZ guard locking switch features OSSD
outputs. These outputs are enabled only when the actuator is locked and the
RF target is sensed.
This device is intended to be part of the safety-related control system of a
machine. Perform a risk assessment before installation to determine whether
the specifications of this device are suitable for all operational and
environmental characteristics of the machine. See Specifications on page 55
certification information and ratings.
Use nonremovable screws, bolts, or nuts to mount the switch and actuators. Do
not over torque the mounting hardware.
TLSZ guard locking switches are classified according to ISO 14119 as Type 4
switching devices. The RFID targets are classified as having a high level of
coding.
for
Measures are to be taken to minimize the need to defeat and to manage the use
and availability of spare RFID targets.
Rockwell Automation Publication 440G-UM002A-EN-P - March 20197
Chapter 1General Description
Catalog Numbers
The schema for the TLSZ catalog number is shown in Ta b l e 1 . The parts of the
schema are shown in Ta b l e 2
Table 1 - TLSZ Catalog Number Setup
440GTZS21UPRH
1 234 5 6789
Table 2 - TLSZ Catalog Number Detail
ParameterValueDescription
1440Safeguards the Product
2GGuard locking switch
3TTitan Locking Switch
4ZPLe rated, cascadable safety signals
5S21Solid-state outputs, 2 safety (OSSD), 1 aux
6UUnique coded RFID target
7PTAux signal shows lock status
8RLPower to Rele ase
9H8-pin M12 QD connector
.
Aux signal shows door status
Power to Lock
ATT EN TI ON : Guard lock switches that use the Power to Lock principle can
only be used after a risk assessment has shown that the Power to Release
principle is inappropriate for the application. If a power supply loss occurs
with Power to Lock switches, the switches immediately become unlocked
and the user may have access to the hazards.
8Rockwell Automation Publication 440G-UM002A-EN-P - March 2019
General DescriptionChapter 1
Packaging Contents
Figure 1 shows the contents in the shipping package. The contents include:
•Switch
•Actuator
•RFID target
• T20 security Torx bit
• Two steel bolts and nuts
•Plug
• Installation instructions (not shown)
Figure 1 - Package Contents
Rockwell Automation Publication 440G-UM002A-EN-P - March 20199
Chapter 1General Description
Notes:
10Rockwell Automation Publication 440G-UM002A-EN-P - March 2019
Installation
Chapter 2
General Considerations
Actuator/Target Mounting
The TLSZ guard locking switch is designed for use on guards that are
engineered to be rigid and without sag. The TLSZ uses radio frequency
identification, RFID, coding to detect the appropriate target.
Figure 2 shows the correct and incorrect ways to mount the target with the
actuator.
The TLSZ must only be used with the fully flexible actuator. The replacement
part number for the actuator is catalog number 440G-A27143.
Figure 2 - Target/Actuator Mounting
Tar ge t
Actuator
Rockwell Automation Publication 440G-UM002A-EN-P - March 201911
Chapter 2Installation
This approach requires
guide repositioning, see
page 14.
80 (3.19)
80 (3.19)80 (3.19)
80 (3.19)
1.5 mm (0.06 in.)
Allowable Approach
Directions
The actuator and target must be always mounted as “close coupled” and can
approach the switch in any of the three entry slot positions that are shown in
Figure 3
. Approach from the underside is not allowed, as the distance from the
target to the internal RF sensor is too far for reliable operation.
Figure 3 - Allowable Approach Direction
Minimum Operating Radius
When applied to hinged doors, the minimum operating distances along the
length and perpendicular is shown in Figure 4
Figure 4 - Minimum Operating Distance [mm (in.)]
.
Figure 5 shows the location of the two 1.5 mm (0.06 in.) set screws that can be
adjusted to preset the actuator to an optimal angle, if needed.
Figure 5 - Actuator Set Screw
12Rockwell Automation Publication 440G-UM002A-EN-P - March 2019
InstallationChapter 2
Manual Release
The manual release feature only applies to TLSZR (Power to Release) switch.
In some cases, you must manually release the locked actuator.
Figure 6
shows the two locations from which the actuator can be manually
released.
1. Remove the T20 Torx screw.
2. To release the actuator, insert a small screwdriver or rod in the hole.
If power is applied to the switch when the actuator is released, the OSSD safety
outputs turn OFF and the switch goes to a faulted state with the status
indicator flashing red at 4 Hz. Power then has to be cycled to the switch to
return it to an operational state.
Figure 6 - Manual Release
3
1
2
T20
Manual Override Cover
2
≤ 2.5 (0.10) Ø
Figure 7 on page 14 shows an optional cover that is available only for the
TLSZR (Power to Release) switch. This cover has a lever that allows you to
manually unlock the actuator at any time. Rotate the lever 90° to unlock the
actuator.
If power is applied to the switch when the actuator is released, the OSSD safety
outputs turn OFF, and the switch goes to a faulted state with the status
indicator flashing red at 4 Hz. Power is then cycled to the switch to return it to
an operational state.
Rockwell Automation Publication 440G-UM002A-EN-P - March 201913
Chapter 2Installation
1
1.2 N•m (10.62 lb•in)
2
90°
90°
Figure 7 - Manual Override Cover
Pair Proximity
Guide Repositioning
If a pair of TLSZ switches are mounted too close to each other, the two RF
fields could interact causing crosstalk. Cross talk results in nuisance faults.
An absolute minimum of 200 mm (8 in.) must be used to help achieve correct
operation.
The restriction also applies if a TLSZ switch is mounted close to the 440G-LZ
guard locking and the 440N-Z SensaGuard™ switches.
The actuator guide can be repositioned to facilitate alignment of the actuator.
In steps 8…11 (Figure 8
), rotate the metal guide to allow the switch body to be
fastened flush to the mounting surface.
Figure 8 - Guide Repositioning
2
3
1
5
6
4
7
8
14Rockwell Automation Publication 440G-UM002A-EN-P - March 2019
180°
10
9
11
InstallationChapter 2
Steel Locking Bolts
The TLSZ is assembled in the factory with plastic pins that secure the actuator
guide. The plastic pins are rated for a holding force of 1500 N (337 lb). The
plastic pins must be replaced with the steel bolts to achieve a holding force of
2000 N (585 lb). Figure 9
shows how to remove the cover to replace the blue
plastic pins with steel bolts.
Figure 9 - Steel Bolt Installation
1.2 N•m (10.62 lb•in.)
5 (0.20)
dia.
Steel bolts
2 x M5
1.4 N•m
(12.39 lb•in.)
1.2 N•m (10.62 lb•in.)
2 x M5
1.4 N•m (12.39 lb•in.)
Plastic pins
15 (0.59)
Actuator Clearance
Fzh = 1500 N (337 lb)
Fzh = 2000 N (450 lb)
Figure 10 shows the clearance requirements for the TLSZ. The switch must
not be used as a guard stop. You must provide a mechanical stop at least 1mm
(0.04 in.) away from the actuator guide. The actuator must be inserted within
4mm (0.16 in.) or less from the actuator guide to be sure it locks.
Figure 10 - Clearance and Insertion Distance
1…4 (0.04…0.16)
Rockwell Automation Publication 440G-UM002A-EN-P - March 201915
Chapter 2Installation
As shown in Figure 11, the TLSZ has two slotted holes to facilitate
installation. The slots allow up to 8 mm (0.31 in.) of movement of the switch
body to achieve the proper clearance with the actuator.
1. Use the slotted holes for initial installation.
2. After alignment with the actuator, secure the switch body in place by
adding mounting hardware in the circular holes.
3. To attain the maximum holding force, replace the plastic pins with steel
screws inside the cover.
Figure 11 - Mounting Slots for Alignment [mm (in.)]
M5
12
3
Status/
Diagnostic
8 (0.31)
16Rockwell Automation Publication 440G-UM002A-EN-P - March 2019
InstallationChapter 2
86 (3.39)
57 (2.24)
3 (0.12)
3 (0.12)
6.5 (0.26)
17
(0.67)
21 (0.83)
14.5
(0.57)
52.5 (2.07)
31.5 (1.24)
60.5 (2.38)
67.5 (2.66)
6.5 (0.26)
5 (0.2)
M5 x 4
126 (4.96)
105 (4.13)
14 (0.55)
22 (0.87)
27 (1.06)
39 (1.54)
9 (0.35)
14 (0.55)
33 (1.3)
6.5 (0.26)
25.5 (1)
20.5 (0.81)
5 (0.2)
5.5 (0.22)
21
(0.83)
17 (0.67)
43 (1.69)
6 (0.24)
5 (0.2)
73 (2.87)
4 (0.16)
Status/
Diagnostic
LED
Target Alignment Mark
14
(0.55)
2.2 (0.09)
24
(0.94)
4.2 (0.17)
19.2 (0.76)
M12
18
(0.71)
20
(0.79)
8
(0.31)
40 (1.57)
31 (4.22)
6.8
(0.27)
4 x 5.5 (0.22)
2 x M3
19
(0.75)
13
(0.51)
51
(2.0)
52 (2.05)
Actuator
Use with exible actuator only:
23.2 (0.91)
11.9
(0.47)
19
(0.75)
440G-ATZAE-xxxx
29.3 (1.15)
7
(0.28)
20
(0.79)
M5
5.5
(0.22)
Tar ge t
Connector location and
dimensions
Do not use cable gland knockouts, two places
Dimensions
Figure 12 shows the dimensions for the switch, target, and actuator.
Figure 12 - Dimensions [mm (in.)]
Rockwell Automation Publication 440G-UM002A-EN-P - March 201917
Chapter 2Installation
3 x M5
5.5 (0.22)
6 (0.24)
20
(0.79)
86.5
(3.4)
35
(1.38)
40
(1.57)
13 (0.51)
19
(0.75)
6 (0.24)
7 (0.28)
Tar ge t
Actuator
Figure 13 shows the dimensions for mounting the target that is next to the